| iphone Programming Glossary: canopenurlHow can I open a Twitter tweet using the native Twitter app on iOS? http://stackoverflow.com/questions/10424275/how-can-i-open-a-twitter-tweet-using-the-native-twitter-app-on-ios 
 UIDocumentInteractionController no longer works in iOS6 http://stackoverflow.com/questions/12631466/uidocumentinteractioncontroller-no-longer-works-in-ios6  in iOS6  I have an app that shares with instagram built for iOS5 and now in iOS6 sharing no longer works although canOpenURL returns true and code executes. The images are saved to the documents folder of the application with a .igo extension. This.. NSLog @ @ _imgToUpload NSURL instagramURL NSURL URLWithString @ instagram app if UIApplication sharedApplication canOpenURL instagramURL  uidController UIDocumentInteractionController alloc init  imageToUpload is a file path with .igo file extension.. 
 Sharing Image on instagram in ios http://stackoverflow.com/questions/16954810/sharing-image-on-instagram-in-ios  I am using the below code. NSURL instagramURL NSURL URLWithString @ instagram  if UIApplication sharedApplication canOpenURL instagramURL   CGRect rect CGRectMake 0 0 0 0  UIGraphicsBeginImageContextWithOptions self.view.bounds.size self.view.opaque.. 
 How to check for custom url scheme on iphone? http://stackoverflow.com/questions/2716508/how-to-check-for-custom-url-scheme-on-iphone 
 how to check installed application in iphone device http://stackoverflow.com/questions/3243567/how-to-check-installed-application-in-iphone-device  checking for has a URI scheme registered you can probe for that and assume the app is installed. Have a look at BOOL canOpenURL NSURL url try something along the lines of if UIApplication sharedApplication canOpenURL NSURL URLWithString @ fb  NSLog.. Have a look at BOOL canOpenURL NSURL url try something along the lines of if UIApplication sharedApplication canOpenURL NSURL URLWithString @ fb  NSLog @ will open facebook urls However this does not give the guarantee that the genuine facebook.. 
 Make a call from my iPhone application http://stackoverflow.com/questions/3282778/make-a-call-from-my-iphone-application  have phone capabilities before using any URL scheme via openURL you should check for support for that scheme using canOpenURL which will return YES or NO depending on whether the current device supports the URL scheme you're using.  share improve.. 
 How to check programatically if an App is installed? http://stackoverflow.com/questions/3512228/how-to-check-programatically-if-an-app-is-installed  URI scheme is for example fb for the facebook app. You can register that in the info.plist of your app. UIApplication canOpenURL url will tell you if a certain url will or will not open. So testing if fb will open will indicate that there is an app.. hint for the facebook app. check whether facebook is likely to be installed or not if UIApplication sharedApplication canOpenURL NSURL URLWithString @ fb  Safe to launch the facebook app UIApplication sharedApplication openURL NSURL URLWithString @.. 
 How to know the apps installed in iPhone http://stackoverflow.com/questions/3649201/how-to-know-the-apps-installed-in-iphone  that we'll need is UIApplication. First we need check if the iOS can open specific url UIApplication sharedApplication canOpenURL NSURL URLWithString @ fb profile If this method returns yes then the user has the facebook application installed. To open.. 
 How do I test if IOS device has telephone capabilities? http://stackoverflow.com/questions/3736110/how-do-i-test-if-ios-device-has-telephone-capabilities 
 Detecting programmatically whether an app is installed on iPhone http://stackoverflow.com/questions/3808691/detecting-programmatically-whether-an-app-is-installed-on-iphone  users to be able to open their second app from the main app if it had been installed. This is my finding. Use the canOpenURL method to check if an app is installed or and then use the openURL method to Open the application installed on the iOS device.. if the application has been installed on the iOS device BOOL myAppIsInstalled return UIApplication sharedApplication canOpenURL NSURL URLWithString @ nameOfMyApp IBAction openOrDownloadApp This will return true if the app is installed on the iOS device.. 
 How to handle app URLs in a UIWebView? http://stackoverflow.com/questions/4299403/how-to-handle-app-urls-in-a-uiwebview  NSErrorFailingURLStringKey if error.domain isEqual @ WebKitErrorDomain error.code 101 UIApplication sharedApplication canOpenURL url  UIApplication sharedApplication openURL url return  Normal error handling I have two questions about this Is this sane.. it. NSURL url request.URL if url.scheme isEqual @ http url.scheme isEqual @ https if UIApplication sharedApplication canOpenURL url  UIApplication sharedApplication openURL url return NO  return YES This works very well except for the bloody Frame.. 
 iOS - Detecting whether or not device support phone calls? http://stackoverflow.com/questions/5094928/ios-detecting-whether-or-not-device-support-phone-calls  share improve this question   The iPhone supports the tel URI scheme. So you could use UIApplication sharedApplication canOpenURL NSURL URLWithString @ tel canOpenURL explicitly checks whether there's an application capable of opening that URL scheme.. supports the tel URI scheme. So you could use UIApplication sharedApplication canOpenURL NSURL URLWithString @ tel canOpenURL explicitly checks whether there's an application capable of opening that URL scheme not that the URL is correct. So it doesn't.. 
 Load YouTube outside Application http://stackoverflow.com/questions/8673066/load-youtube-outside-application  url request.URL if url.host isEqual @ youtube.com url.query rangeOfString @ watch 0 if UIApplication sharedApplication canOpenURL url  UIApplication sharedApplication openURL url return NO  return YES This is not tested but should work   share improve.. 
 How to open facebook page in facebook app in iphone? http://stackoverflow.com/questions/8984468/how-to-open-facebook-page-in-facebook-app-in-iphone 
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